Fastening device



FIG. 1 is a perspective view of a fastening device according to the present design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a side elevation view thereof;

FIG. 5 is a second side elevation view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is the perspective view of FIG. 1 shown in assembled form; and,

FIG. 9 is a perspective side elevation view showing the fastening device in an exploded view.

The broken lines depict portions of the fastening device that form no part of claimed design. 

CLAIM The ornamental design for a fastening device, as shown and described. 